package com.zcs.android.app.jetpack.model;

import androidx.lifecycle.MutableLiveData;

public class TestModel {

    // MutableLiveData 为可变数据
    private MutableLiveData<String> instance;

    public MutableLiveData<String> getInstance() {
        if (instance == null) {
            instance = new MutableLiveData<>();
        }

        return instance;
    }

}
